Mathematical Modelling of Forecasting the Results of Knowledge Testing / Žinių Tikrinimo Rezultatų Prognozės Matematinis Modeliavimas

Krylovas, Aleksandras; Kosareva, Natalja

doi:10.3846/1392-8619.2008.14.388-401

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…Segments of linear functions 1 ( ) f p are represented by trapezium or triangle depending on the parameter values (Krylovas, Kosareva 2008a). Beta distribution probability density function initially satisfies features (9) and (10).…”

Section: Mathematical Model Of Experimentsmentioning

confidence: 99%

A Numerical Experiment on Mathematical Model of Forecasting the Results of Knowledge Testing

Kosareva

Krylovas

2011

Technological and Economic Development of Economy

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In this paper the new approach to the forecasting the results of knowledge testing, proposed earlier by authors, is extended with four classes of parametric functions, the best fitting one from which is selected to approximate item characteristic function. Mathematical model is visualized by two numerical experiments. The first experiment was performed with the purpose to show the procedure of selecting the most appropriate item characteristic function and adjusting the parameters of the model. Goodness-of-fit statistic for detecting misfit of the selected model is calculated. In the second experiment a test of 10 items is constructed for the population with latent ability having normal distribution. Probability distribution of total test result and test information function are calculated when item characteristic functions are selected from four classes of parametric functions. In the next step it is shown how test information function value could be increased by adjusting parameters of item characteristic functions to the observed population. This model could be used not only for knowledge testing but also when solving diagnostic tasks in various fields of human activities. Other advantage of this method is the reduction of resources of testing process by more precise adjustment of the model parameters and decreasing the standard error of measurement of the estimated examinee ability. In the presented example the methodology is applied for solving the problem of microclimate evaluation in office rooms.

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Section: Mathematical Model Of Experimentsmentioning

confidence: 99%

A Numerical Experiment on Mathematical Model of Forecasting the Results of Knowledge Testing

Kosareva

Krylovas

2011

Technological and Economic Development of Economy

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“…Constant and dynamic development of those techniques can be observed (Kapliński 2008b, c). Numerous examples of the development of these techniques are published, for example: Jurkevičius and Laukaitis 2007; Kapliński and Zavadskas 1997;Krylovas and Kosareva 2008;Mickaityte et al 2007;Nassar and Casavant 2008;Lee and Egbu 2007;Turskis et al 2006;Turskis 2008;Popov et al 2006;Schafer and Sędziwy 2001;Scheer et al 2007. Various other aspects was analysed by: Khamkanya and Sloan 2008; Mitkus and Trinkuniene 2008;Rutkauskas 2008;Rutkauskas et al 2008;Samuelson 2008;Šelih 2007;Skorupka 2005;Zavadskas et al 2008a. Other considerations in the context of economy are presented by: Ginevičius and Podvezko 2008; Kaganova et al 2008;Kaklauskas et al 2007;Kapliński 1985Kapliński , 1993Kapliński , 2001Mickaityte et al 2008;Mitkus and Sostak 2008.…”

Section: Changes In Approach Towards Information Technologymentioning

confidence: 99%

Information Technology in the Development of the Polish Construction Industry

Kapliński

2009

Technological and Economic Development of Economy

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The utilization of Construction Management (CM) tools and Information Technology (IT) is the object of the paper. A review of the problems of usefulness of IT solutions on offer in Polish construction sector is presented. Generally, changes in approach to information technology, diversification and variety of its software, prosperity in construction industry and its solutions are the main motif of this paper. A significant discrepancy in the assessment of attractiveness and usefulness of those methods by businessmen and academics has been pointed out. Relationships between prosperity in construction market and usage of new planning methods, decision making, and IT systems are discussed. Results of studies are negative. The reasons for such a state of things have been presented. The research was based on questionnaires and interviews. Regression and correlation were used for the analysis. Besides, an attempt to describe the phenomenon of saturation of Polish construction sector with IT tools has been indicated. The discussion of those problems may be addressed to potential IT suppliers and can be implemented in different construction sectors. Santrauka Straipsnio objektas – statybos valdymo priemonių ir informacinių technologijų (IT) naudojimas. Iškeliamos Lenkijos statybos sektoriui siūlomų informacinių technologijų sprendimų naudingumo problemos. Pagrindinis straipsnio atsiradimo motyvas – kintantis požiūris į informacines technologijas, programinės įrangos įvairovė ir diversifikacija bei statybos pramonės klestėjimas. Verslininkų ir mokslininkų vertinimai minėtų technologijų patrauklumo ir naudingumo požiūriu labai skiriasi. Aptariama, ar suklestėjimas statybos rinkoje priklauso nuo naujų planavimo ir sprendimų priėmimo metodų bei informacinių technologijų naudojimo. Tyrimai pateikia neigiamą atsakymą ir paaiškina to priežastis. Tyrimas paremtas anketavimu ir interviu ėmimu. Tyrimams pritaikytos regresinė ir koreliacinė analizės. Be to, pabandyta atskleisti, kiek statybos sektorius yra prisotintas informacinėmis technologijomis. Šių problemų aptarimas gali būti naudingas informacinių technologijų teikėjams ir pritaikytas įvairiose statybos srityse.

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“…Fuzzy set (Zadeh 1965;Peldschus and Zavadskas 2005;Hui et al 2009;Krylovas and Kosareva 2008) is a core concept in this article. A fuzzy set is a generalized version of a classical set (or a crisp set).…”

Section: Methodsmentioning

confidence: 99%

Developing Strategies to Reduce the Risk of Hazardous Materials Transportation in Iran Using the Method of Fuzzy Swot Analysis

2009

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Abstract. An increase in hazardous materials transportation in Iran along with the industrial development and increase of resulted deadly accidents necessitate the development and implementation of some strategies to reduce these incidents. SWOT analysis is an effi cient method for developing strategies, however, its structural problems, including a lack of prioritizing internal and external factors and inability to consider two sided factors reducing its performance in the situations where the number of internal and external factors aff ecting the risk of hazardous materials is relatively high and some factors are two sided in nature are presented in the article. Fuzzy SWOT analysis is a method the use of which helps with solving these problems and is the issue of employing an eff ective methodology. Also, the article compares the resulted strategies of the fuzzy method with the strategies developed following SWOT in order to show the relative supremacy of the new method.

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Mathematical Modelling of Forecasting the Results of Knowledge Testing / Žinių Tikrinimo Rezultatų Prognozės Matematinis Modeliavimas

Cited by 6 publications

References 12 publications

A Numerical Experiment on Mathematical Model of Forecasting the Results of Knowledge Testing

A Numerical Experiment on Mathematical Model of Forecasting the Results of Knowledge Testing

Information Technology in the Development of the Polish Construction Industry

Developing Strategies to Reduce the Risk of Hazardous Materials Transportation in Iran Using the Method of Fuzzy Swot Analysis

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